Well, considering that canon Revan is male, and Light Side, yes, that's clearly it. Also, they did say that Revan never returned, so that would narrow it down to anywhere between 3956 BBY (KOTOR) and 3955 BBY (TSL is five years later, but Carth says Revan's been gone for four years).

I know but after Revan might have somthing planned and he might have told shan not to tell anyone